This is only the second time a bat'leth appears on Star Trek. As can be seen, Worf has chosen to redecorate the wall displaying the bat'leth a little since it was last seen in "Reunion".

"Reunion"

Worf's weapons wall in HD.

Both the footage of the Vor'cha class attack cruiser and the USS Enterprise-D are new. In fact, all footage of the Klingon ship in this episode is new, no shot from
"Reunion" was re-used.

The ship scenes in HD.

The USS Enterprise-D and the Klingon attack cruiser approach Qo'noS and its primary. The footage of the USS Enterprise-D first appeared in "Half a
Life".

"Half a Life"

The phaser range appeared only in one more episode, in "A Matter of
Honor", where it is used by Riker and Picard. The ring with the blue and yellow semicircle appears to be unchanged, only the line separating the two halves has been changed.

"A Matter
of Honor"

The scene as it looks in TNG-R.

"A Matter
of Honor"

This footage of the Klingon Bird-of-Prey in orbit of Qo'noS is new.

For HD, the new CG planet already known from "Sins of
the Father" was used.

Kurn displays a nice assortment of Klingon weapons in his ready room. The two knives were seen in action in "The
Emissary" and the proto-bat'leth first appeared in Worf's quarters in "Reunion".

"The Emissary"

"Reunion"

Kurn's weapons wall in HD.

The matte painting of Qo'noS first appeared in "Sins of the Father". The footage appears much less green in this episode and the large building in the foreground and a bird sculpture on the left side of the screen, also in the foreground, were removed. The footage also doesn't include any lighting, like it did in "Sins of the
Father".

"Sins
of
the Father"

Qo'noS looks the same in HD, only that it is much darker now.

"Sins
of
the Father"

"Sins
of
the Father"

"Sins
of
the Father"

The Great Hall has changed appearance since it was last seen in "Sins of the
Father". The hall is much wider now, allowing the inclusion of two red Klingon x-shaped lights to the left and right of the throne. Only one half of the Klingon Great Hall was built. The same set was redressed slightly whenever a shot of the side opposite the throne was needed. To hide the large Klingon logo on the back wall behind the throne, a large Klingon tapestry was created. The tapestry appeared in several later Klingon-themed episodes, like
TNG: "Rightful Heir", DS9: "The House of Quark" (again in the Great Hall) and
DS9: "Apocalypse Rising".

One dead give-away that the set is the same in both shots is the Klingon logo on the
floor. It points towards the short back wall in both sets. The back wall of the set in "Sins of the
Father" looks completely different.

"Sins
of
the Father"

"Rightful
Heir"

The Great Hall in HD.

"Sins of
the Father"

"Apocalypse
Rising"

"The
House
of Quark"

Some sections of the slanted roof of the Great Hall feature
the same pattern seen earlier on walls on Ramatis III ("Loud as a Whisper")
and Angosia III ("The Hunted"). The same pattern will be seen again in
Kamin's house in "The Inner Light" and on Vulcan in "Gambit
II".

"Loud asa Whisper"

"The Inner Light"

"The Hunted"

"Gambit II"

The Klingon throne was only modified slightly since it last appeared. Two additional stripes of fabric, featuring the Klingon logo, were added. The two new stripes cover two triangles that were originally adorning the throne.

"Sins
of
the Father"

This second appearance of the Klingon matte painting was originally created for
"Sins of the
Father", as it appears exactly like it did in that episode, including the much greener sky. In that episode, Picard was visiting Kahlest in her house in the Old City. Here, the episode continues with a scene set in the Duras household, so their home is in the Old City as well.

In TNG-R, the shot has the same hue as in the rest of the
episode.

The USS Enterprise-D and the Klingon attack cruiser in orbit of Qo'noS.

The shot in HD.

This large monitor has never been seen in Worf's quarters before. It was seen in Picard's quarters in two episodes, "Conspiracy" and "The
Offspring", however.

"Conspiracy"

"The Offspring"

The monitor in HD.

Data is reviewing logs pertaining to the Khitomer massacre.

We can't read anything even in HD.

The large foreground building, last seen in "Sins of the Father" has mysteriously reappeared for this zoom-in into the matte painting.

Once again, the hue was corrected for TNG-R to ensure
intra-episode consistency.

The small chair with leather balls is reminiscent of the larger chair seen in Worf's quarters in this and other episodes.

Earlier in
this episode

No changes

The Klingon wall lamp behind Lursa is similar in design to larger lamps seen in several earlier and later episodes, including "The
Ensigns of Command", "Unification" and "The Masterpiece Society".

"Star
Trek V"

"Unification
II"

No changes

"The Ensigns
of Command"

"The
Masterpiece
Society"

"The High
Ground"

"Thine
Own Self"

VOY:
"Time
and Again"

The Duras sisters also have a Ligonian glavin on display in their living room, similar to Worf in his quarters in this and other episodes.

Earlier
in
this episode

"Code
of Honor"

An HD close-up of the glavin.

The daytime shot of the Great Hall was newly created for this episode. Comparing it with the nighttime shot seen earlier in the episode, some differences can be discerned. The small building to the left of the Great Hall has changed its shape and the amount of windows. The buildings in the background to the right of the Great Hall have also changed, as has the small tower in the foreground.

Earlier
in
this episode

The previously green hue is more like turquoise now, which is
consistent with the dusk/dawn shots.

Compare this shot of Picard facing the throne in the Great Hall with a similar shot from "Sins of the
Father" and the differences between the two sets can be seen.

"Sins
of
the Father"

The interior of the Great Hall in HD.

The new Klingon tapestry can be seen behind Picard. Underneath it, a vase is seen
that also appeared in K'mpec's private quarters aboard his ship in "Reunion". In "The
Most Toys", this was identified as a rare Mark Off-Zel vase by Kivas Fajo.

"The
Most Toys"

"Reunion"

A nice look at the Klingon throne and K'mpec's coat with all the different insignia on it.

This shot of the Klingon attack cruiser in orbit of Qo'noS was also newly created for this episode. A similar zoom-in shot from "Reunion" highlighted the other side of the ship.

"Reunion"

The iconic shot in HD.

Gowron's ready room aboard his ship is a redress of Kurn's ready room aboard his Bird-of-Prey seen earlier in the episode. As can be seen, the set is directly attached to the bridge of the attack cruiser. A fake wall was put behind Worf in the earlier shot showing him enter Kurn's ready room.

Earlier
in
this episode

No changes

Earlier
in
this episode

The Klingon wall draping in Gowron's ready room was seen in K'mpec's private room in "Reunion". The two stone pillars it is attached to were previously seen on Duras'
Bird-of-Prey in the same episode.

"Reunion"

"Reunion"

No changes

A Klingon Bird-of-Prey attacks Gowron's ship in orbit of Qo'noS. The footage of the Bird-of-Prey was originally created for "Yesterday's Enterprise" and flipped for this episode.

"Yesterday's
Enterprise"

The two ships in HD.

"Yesterday's
Enterprise"

The bridge of the Klingon attack cruiser is a redress of the torpedo launch bay, created for the previous episode.

"In Theory"

No changes

"In Theory"

The attack on the battlecruiser as seen on the main viewscreen of the USS Enterprise-D. It seems part of the footage was re-used from "Yesterday's Enterprise" and flipped. The Bird-of-Prey Size Paradox

"Yesterday's
Enterprise"

The scene in HD.

This shot of the Klingon Bird of Prey was originally created for "Star Trek III: The Search for Spock". It was also re-used in the season 2 episode "A
Matter of Honor".

"A Matter
of Honor" SD

"A Matter
of Honor" HD

In the remastered version of "A Matter of Honor", the ship was replaced by a CG model of the Bird-of-Prey, apparently as the original footage could not be located. In the HD version of "Redemption I", the original footage is used, so the film must have been found in the meantime.

The Bird-of-Prey fires a photon torpedo. Comparisons
screenshots from "Star Trek III: The Search for Spock" and "Star
Trek V: The Final Frontier" show what Klingon torpedoes looked like in
those two feature films.

"Star
Trek III"

"Star
Trek V"

The firing sequence in the remastered episode.

"Star
Trek III"

"Star
Trek V"

"Star
Trek III"

"Star
Trek V"

The Klingon torpedo hits the shield bubble of the Klingon attack cruiser.

The reconstructed light effects in TNG-R.

Two Klingon interfaces are seen very well in these two screenshots.

HD close-ups of the display.

A screenshot from "In Theory" shows what this part of the set looked like before it was redressed.

"In Theory"

No changes

This shot of the Klingon Bird-of-Prey was originally created for "Yesterday's Enterprise". The Klingon viewscreen is identical to the one seen aboard the Bird-of-Prey Pagh in "A
Matter of Honor". It is very likely, however, that footage from that episode was used here.

"A
Matter
of Honor"

The Klingon viewscreen in HD.

"Yesterday's
Enterprise"

Another shot showing two Birds-of-Prey attacking the Klingon attack cruiser, as seen on the bridge of the USS Enterprise-D main viewscreen.

The scene in HD.

The USS Enterprise-D leaves orbit of Qo'noS. This shot was originally created for "The
Nth Degree", where the ship is trying to escape the grasp of the Cytherian probe.

"The Nth Degree"

The sequence in HD.

The two aft consoles on the bridge of the Klingon attack cruiser have appeared in many previous episodes. They were also seen on Klingon ships in "Star Trek IV: The Voyage Home" and "A
Matter of Honor".

"Star
Trek II"

"A
Matter
of Honor"

No changes

"Star
Trek IV"

"Samaritan
Snare"

"The
Battle"

"The Most Toys"

"Symbiosis"

This shot of the two Klingon Birds-of-Prey was created for "Yesterday's Enterprise". In that episode, three Klingon ships were seen flying past the camera and were firing at the two Enterprises. In
"Redemption I", the ships are not firing.

"Yesterday's
Enterprise"

The two ships in TNG-R.

"Yesterday's
Enterprise"

One of the two Klingon aft consoles is seen up close here.

In the remastered version this previously static
graphic is animated. Initially, we can see just three triangles on the right.
More appear as Worf announces that the enemy ships are approaching and are in
transporter range. The display ends up the way it looked in the SD version.

The Klingon attack cruiser fires a torpedo. In contrast to the green torpedo fired earlier in the episode by the Bird-of-Prey, this torpedo is green and blue.

The firing sequence in HD.

The footage of a Klingon Bird-of-Prey exploding and a second ship flying through the explosive burst was originally created for "Yesterday's Enterprise", where the ship was destroyed by a Starfleet phaser instead of a Klingon torpedo.

"Yesterday's
Enterprise"

The light effect of the torpedo was faithfully reconstructed.
Unlike many previous explosions, this one was not redone for the remastering.

"Yesterday's
Enterprise"

"Yesterday's
Enterprise"

The Klingon captain's chair was also seen in K'mpec's room aboard his attack cruiser in "Reunion". It also appeared in "The
Wounded" on the bridge of a Cardassian Galor class ship and in "The Nth Degree" on the holodeck.

"Reunion"

"The Nth Degree"

A good look at the chair in HD.

"The
Wounded"

The remaining Bird-of-Prey flies towards Gowron's ship.

The Klingon viewscreen in HD.

Kurn's Bird-of-Prey scares away the Duras sisters' Bird-of-Prey. All footage seen in this scene was newly created for the episode.

The sequence in TNG-R.

The Klingon logo appears on the viewscreen of the Vor'cha class attack cruiser.

This part of the Klingon Great Hall set was also seen in "Sins of the
Father".

"Sins
of
the Father"

No changes

Two interesting sculptures and the heavily paneled side-wall of the Great
Hall can be seen in this shot.

No changes

This d'k tahg looks different from the one seen in "The Bonding" and "Sins of the
Father". The side blades do no longer have curved, cut-out tips, so the weapon now looks more in line with the d'k tahg seen in "Star Trek III: The Search for Spock".

"Star
Trek III"

"The
Bonding"

The Klingon knife in HD.

"Sins
of
the Father"

Worf's communicator is seen up close in this screenshot. It can be seen that the sides of the Starfleet arrowhead are painted black, one detail that many replicas get wrong.

An HD close-up of the communicator.

The USS Enterprise-D and Gowron's Vor'cha-class attack cruiser in orbit of Qo'noS.

The ships in HD.

The USS Enterprise-D leaves orbit of Qo'noS.

The crew has lined up for Worf's departure.

The great shot in HD.

A final look at the matte painting showing the surface of Qo'noS, again, with the focus on the Duras house. The building in the foreground has disappeared again.

A final look at the matte in HD.

This is the first appearance of a Romulan PADD. These PADDs were seen in many later episodes and were re-used
by another civilization at least once, as Mari PADDs in "Random Thoughts". The Thieves of the Delta Quadrant

"Birthright
II"

VOY: "Random
Thoughts"

The PADD in HD.

Toral wears a Klingon insignia prominently on his sleeve. The same insignia was worn by Gowron earlier in the episode. It is possible that this is a Klingon communicator.

Earlier
in
this episode

A close-up of the emblem in HD.

The circular piece of wall decoration behind Sela was also seen in the Great Hall on Angel I in "Angel One". It appears again in "Redemption II" and then on the Scimitar in "Star Trek Nemesis" and finally appears in the corridor leading to the Xindi Council chambers in ENT: "The Council".Re-Used Props - Decoration

"Angel
One"

"Star
Trek:
Nemesis"

Sela and the decoration in HD. Unlike in the original
episode, Denise Crosby is only recognizable after excessive gamma enhancement.
(Although it is probably not intentional, it may increase the dramatic impact of
her stepping her into the light.)